Page 102 - Math Skill - 1

100 Maths

Subtraction without Regrouping

Subtract 15 from 46.

To subtract 15 from T O
46, we can use blocks. 4 6

Fact-o-meter 46 – 1 5

Always subtract
smaller number from

bigger number.

Subtract the ones. T O

Cross out 5 ones 4 6

blocks to subtract.

6 Ones – 5 Ones – 1 5
= 1 One 1

Subtract the tens. T O

Cross out 1 ten 4 6

block to subtract. – 1 5

4 Tens – 1 Ten = 3 Tens 3 1

So, 46 – 15 = 31

Subtract the following.

T O T O T O T O

9 5 7 5 5 0 8 5

– 7 3 – 5 4 – 1 0 – 4 3